They say in the video that the strategy (their opinion) is for Congress to override an executive order, if that is what Obama does in fact do. Very difficult to do and has happened only twice in history.

"Executive orders can be overturned by either of the other two branches: the Supreme Court can do so through a case that is brought in front of them and Congress can do so by passing legislation that would conflict with the order or by refusing to approve funding to enforce it. The president still has the right to veto a decision from Congress, which Congress can override as always with a two-thirds majority that would end the executive order. However, this is nearly impossible because of the supermajority vote that is required as well as the fact that individual lawmakers can be left very vulnerable to political criticism. To date, two executive orders have been overturned by other branches. Executive orders can also be overturned by future presidents. This has already been done by Barack Obama in regards to a few of George W. Bush’s orders."

REF:
http://usgovinfo.about.com/od/thepresidentandcabinet/a/preslegpower.htm
http://www.votetocracy.com/blog/detail/understanding-executive-orders-and-the-powers-they-grant